1225640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2357}}^1$

素因数の和:2381

約数の個数: 32

約数和(自身を含む): 2971080

約数和(自身を除く): 1745440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2357, 4714, 9428, 11785, 18856, 23570, 30641, 47140, 61282, 94280, 122564, 153205, 245128, 306410, 612820, 1225640]

約数ペア:

[(1, 1225640), (2, 612820), (4, 306410), (5, 245128), (8, 153205), (10, 122564), (13, 94280), (20, 61282), (26, 47140), (40, 30641), (52, 23570), (65, 18856), (104, 11785), (130, 9428), (260, 4714), (520, 2357)]